ISO 3384-1: Stress relaxation in compression (constant temperature)
ISO 3384-1 is the method for measuring compression stress relaxation in vulcanized or thermoplastic rubber by tracking how load decays under fixed compression. To match this to your program, talk with our team.
What ISO 3384-1 Covers
It measures how the counterforce of a compressed rubber specimen decreases over time at a fixed strain, a key indicator of sealing performance and long-term elastic behaviour.
How the Test Is Run
A rubber specimen is compressed to a set deformation and held, and the force it exerts is monitored over time, often at elevated temperature, to give the stress-relaxation behaviour.
Why It Matters
Stress relaxation predicts how seals and gaskets maintain sealing force over service life; stable compression and accurate long-term force measurement are essential.
Reading the Designation
Cited as ISO 3384-1 with its edition year. Confirm the edition and specimen requirements before finalizing fixtures. To configure a compression setup, request a quote.
TensileMill CNC products for ISO 3384-1
Our specimen-preparation systems and testing equipment compatible with ISO 3384-1.
Electro Mechanical Universal Testing System 5 kN / 50 kN with Precision Load Cell
Electro-Mechanical UTM · 5 kN / 50 kN with Precision Load Cell
Compression Fixtures for Axial Load Testing of Rigid Specimens
Compression platens for axial load testing of rigid specimens
Set up ISO 3384-1 testing with TensileMill CNC
Tell us your materials, specimen forms, and required test sections, and our team will match the right configuration.